[fix] third batch of CI fix (#2680)

conf/userconf/OPENUAS/openuas_obc2014_conf.xml

@@ -2,7 +2,7 @@
   <aircraft
    name="Vivify"
    ac_id="217"
-   airframe="airframes/OPENUAS/openuas_vivify.xml"
+   airframe="airframes/OPENUAS/openuas_own_vivify.xml"
    radio="radios/dummy.xml"
    telemetry="telemetry/default_fixedwing_imu_9k6.xml"
    flight_plan="flight_plans/OPENUAS/openuas_obc2014_kingaroy.xml"

conf/userconf/tudelft/ralphthesis2020_conf.xml

@@ -1,15 +0,0 @@
-<conf>
-
-  <aircraft
-   name="bebop_stereo"
-   ac_id="44"
-   airframe="airframes/tudelft/bebop_ralphthesis2020_stereo.xml"
-   radio="radios/dummy.xml"
-   telemetry="telemetry/default_rotorcraft.xml"
-   flight_plan="flight_plans/tudelft/ralphthesis2020_stereo_cyberzoo.xml"
-   settings="settings/rotorcraft_basic.xml"
-   settings_modules="modules/video_rtp_stream.xml modules/video_capture.xml modules/bebop_cam.xml modules/wedgebug.xml modules/ins_extended.xml modules/ahrs_int_cmpl_quat.xml modules/stabilization_indi_simple.xml [modules/nav_basic_rotorcraft.xml] modules/guidance_rotorcraft.xml [modules/gps.xml] modules/imu_common.xml"
-   gui_color="white"
-   release="c3090b6692780d8b3ad4b32cb9cef06f4186360c"
-  />
-</conf>

sw/airborne/modules/ctrl/optical_flow_hover.c

@@ -216,8 +216,8 @@ uint8_t hover_method;
 
 /// Function definitions
 // Callback function of the optical flow estimate:
-void ofh_optical_flow_cb(uint8_t sender_id __attribute__((unused)), uint32_t stamp, int16_t flow_x, int16_t flow_y,
-                         int16_t flow_der_x, int16_t flow_der_y, float quality, float size_div);
+void ofh_optical_flow_cb(uint8_t sender_id __attribute__((unused)), uint32_t stamp, int32_t flow_x, int32_t flow_y,
+                         int32_t flow_der_x, int32_t flow_der_y, float quality, float size_div);
 
 // resetting all variables to be called for instance when starting up / re-entering module
 static void reset_horizontal_vars(void);